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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 71 for “"Synchronous Generator"”.
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Synchronous generator and excitation system response to GIC
… little research investigating the response of synchronous generators and excitation systems to such disturbances. Moreover, conventional GIC modelling assumes a dc voltage induced in the neutral or along transmission lines, but this may not adequately represent the actual dynamic power system's …
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Loading characteristics of a charge-constrained synchronous generator
Thesis (Nav.E)--Massachusetts Institute of Technology, Dept. of Naval Architecture and Marine Engineering; and, (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1968.
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Design and optimisation of a coreless superconducting synchronous generator
… design of a coreless superconducting rotor for a synchronous machine are described. A few possible coreless rotor configurations are characterised and a simple formula is used to minimise the harmonic content.<br/><br/>Estimation of machine parameters and evaluation of losses is also conducted. …
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Modeling and Control of a Synchronous Generator With Electronic Load
… of a system consisting of a variable-speed synchronous generator that supplies an active dc load (inverter) through a three-phase diode rectifier requires adequate modeling in both time and frequency domain. In particular, the system's control-loops, responsible for stability and proper …
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Output Impedance Modeling and Measurement of a 28 kW Synchronous Generator
Synchronous machines (SMs) are a vital part of today's world, and precise modeling is important for studying their stability. In this thesis, a small-signal analysis is done on the d-q frame for the AC SM. Starting from formulating the SM's abc frame equations, a d-q transformation is done based on …
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Investigation of a new method for synchronous generator loss of excitation protection
ABSTRACT Synchronous generator loss of field can compromise both generator and power grid stability and therefore must be quickly detected. In this thesis, a new proposed method for LOF detection has been further explored and its shortcomings corrected.The detection index has been calculated based …
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INTERAREA OSCILLATION DAMPING BY USING A PERMANENT MAGNET SYNCHRONOUS GENERATOR WIND TURBINE
The permanent magnet synchronous generator (PMSG) wind turbine control for damping power system inter-area oscillations is a topic of much interest. However, the PMSG wind turbine controls in the generator and grid sides such as a PMSG speed control or dc voltage control do not have a sufficient …
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System Frequency Support of Permanent Magnet Synchronous Generator-Based Wind Power Plant
… world, a trending replacement of conventional synchronous generators by large wind power plants will likely result in the poor overall frequency regulation performance. On the other hand, permanent magnet synchronous generator wind Turbine System (PMSG-WTG) with full power back to back …
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Using Intrinsic 3rd Harmonics for Large Synchronous Generator Insulation Fault Condition Monitoring
… power industry, the operational health of large synchronous generators is a primary concern for generator owners. This concern has become more pressing as many owners seek to extend the lifespan of their aging generation facilities. With the construction of numerous data centers and the …
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Improved thermal design of the cryogenic cooling system for a superconducting synchronous generator.
Thesis. 1975. Ph.D.--Massachusetts Institute of Technology. Dept. of Mechanical Engineering.
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Design, construction and testing of a multi-port permanent magnet synchronous generator for wind power generation
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2026-05-01
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Comparison of low voltage ride through capabilities of synchronous generator with STATCOM and DFIG based wind farms
… and clean electricity across the globe. Wind generators are available as small, medium and large scale electric generators, usually in the range of 1kW to 100MW and are usually installed in areas rich in wind resource which may or may not be located close to the load centres. Wind energy …
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Control Strategy for a Small-Scale Microgrid Based on Battery Energy Storage System-Virtual Synchronous Generator (bess-Vsg)
… means Battery Energy Storage System-Virtual Synchronous Generator, the frequency can be controlled to the nominal value faster and more smoothly when there is a fluctuation in the PV power generation and/or load change, leading to higher stability and robustness.</p> <p>This thesis focuses on …
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Modeling, analysis and experimental verification of variable-speed constant-frequency power conversion scheme with a permanent magnet synchronous generator
… power conversion scheme with a permanent magnet synchronous generator (PMSG) is studied in this dissertation. The scheme consists of a PMSG, diode-rectifier bridge, dc-link filter, controlled converter for conversion to the constant frequency ac utility, and transformer. The various subsystems …
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Development of a converter for grid-tied and isolated operation of an interior permanent magnet synchronous generator, coupled to a twin-shaft gas turbine
… the country’s energy mix. Gas turbine generators are poised to play a larger role in South Africa’s energy mix, due to the country’s abundance in natural gas reserves. Therefore, there is a need to developed gas turbine emulation systems to investigate how this transition is to be …
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Power System Frequency Control and Stability Analysis With Increasing Renewable Energy Penetration Level
… units and the replacement of traditional synchronous generators, the issues associated with the deteriorated performance of power system frequency regulation and potential grid frequency instability become more significant. In this dissertation, the inertial control algorithms are …
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P-Q capability analysis of inverter based resources with typical grid connected filters
… to specify the safe operation boundary for a synchronous generator. With the increased development of inverter-based resources (IBRs) and interconnection of IBRs to the grid, IBR P-Q Capability Charts are also developed and proposed by the power industry to assure IBR operation efficiency and …
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Applications of phasor measurements to the real-time monitoring of a power system
… measurement units to power system monitoring and synchronous generator modeling. Adjustments to a previously developed PMU placement algorithm are described which observe generator and tie line flows explicitly and reduces the number of PMUs required for a system, still observing the major dynamic …
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Development of synchronverter control for induction motor connection
… as synchronverter control which is using the synchronous generator mathematical equations as a reference. This synchronverter control is connected with DC-AC three phase inverter to work as controller of output power to feed the load. In this control strategy, the output current of the …
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